Is it a smooth(ish) transition according to distance? It seems to me that you are describing an LOD transition. If you take a look at the terrain in Wireframe mode, you’ll see that it has less detail according to distance.
Check the terrain’s detail panel for LOD settings. You can force the LOD Max level to 0 so it will stay at max quality at all times (at the cost of performance of course).
I’d recommend giving the landscape documentation a read to better understand how to make LODs work better.
Hi, I am pretty new to UE4 and its terrain building tools, but this seems odd. Whenever I either move the camera around or move in game the terrain will shift and change size, is there a way to stop this, or have I done something wrong?